Rail Mail refers to the historical system of transporting mail via trains, which played a crucial role in connecting Singapore with Malaysia and beyond. Introduced during the early 20th century, Rail Mail ensured fast and reliable delivery of letters, parcels, and official documents along the KTM Railway.

This railway-based postal system was instrumental in supporting trade, communication, and government operations before the advent of modern digital and air mail services. Mail was sorted on board trains or at key railway stations such as Tanjong Pagar Railway Station and Bukit Timah Railway Station, making the delivery process efficient and dependable.

Today, Rail Mail is a fascinating part of Singapore’s transport and communication heritage, offering insights into how railways shaped the country’s history and connectivity. Collectors and history enthusiasts often explore old railway stamps, mailbags, and memorabilia to preserve the legacy of Rail Mail.